MAX9271GTJ+T Maxim Integrated, MAX9271GTJ+T Datasheet - Page 26

• Manufacturer Part Number: MAX9271GTJ+T
• Description: Serializers & Deserializers - Serdes 1.5Gbps 16Bit Coax/STP serializer
• Manufacturer: Maxim Integrated
• Type: Serializerr

Specifications of MAX9271GTJ+T

• Rohs: yes
• Data Rate: 1.5 Gbit/s
• Input Type: CMOS/LVCMOS
• Output Type: CML
• Number Of Inputs: 16
• Number Of Outputs: 1
• Operating Supply Voltage: 1.7 V to 3.6 V
• Operating Temperature Range: - 40 C to + 105 C
• Package / Case: TQFN-32
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT

As shown in
packets going to or coming from the peripherals from
UART format to I
device removes the byte number count and adds or
receives the ACK between the data bytes of I
bit rate is the same as the UART bit rate.
The serializer/deserializer UART-to-I
interface with devices that do not require register address-
es, such as the MAX7324 GPIO expander. In this mode,
the I
directly reads/writes the subsequent data bytes
23). Change the communication method of the I
ter using the I2CMETHOD bit. I2CMETHOD = 1 sets
command-byte-only mode, while I2CMETHOD = 0 sets
normal mode where the first byte in the data stream is
the register address.
Figure 22. Format Conversion Between GMSL UART and I2C with Register Address (I2CMETHOD = 0)
Maxim Integrated
SERIALIZER/DESERIALIZER
SERIALIZER/DESERIALIZER
2
FC
FC
C master ignores the register address byte and
UART-TO-I
UART-TO-I
SYNC FRAME
SYNC FRAME
11
11
2
2
C CONVERSION OF WRITE PACKET (I2CMETHOD = 0)
C CONVERSION OF READ PACKET (I2CMETHOD = 0)
Figure
SERIALIZER/DESERIALIZER
SERIALIZER/DESERIALIZER
2
C format and vice versa. The remote
Interfacing Command-Byte-Only I
22, the remote-side device converts
DEVICE ID + WR
DEVICE ID + RD
11
11
PERIPHERAL
PERIPHERAL
: MASTER TO SLAVE
S
1
S
1
REGISTER ADDRESS
REGISTER ADDRESS
16-Bit GMSL Serializer with Coax or
Devices with UART
2
DEV ID
DEV ID
C conversion can
7
7
11
11
W
W
1
1
2
1
A
1
A
C. The I
: SLAVE TO MASTER
REG ADDR
REG ADDR
2
NUMBER OF BYTES
NUMBER OF BYTES
C mas-
(Figure
8
8
2
2
11
11
C
C
1
A
1
A
1
S
DEV ID
In bypass mode, the serializer/deserializer ignore UART
commands from the FC and the FC communicates with
the peripherals directly using its own defined UART pro-
tocol. The FC cannot access the serializer/deserializer
registers in this mode. Peripherals accessed through the
forward control channel using the UART interface need
to handle at least one PCLKIN period Q10ns of jitter due
to the asynchronous sampling of the UART signal by
PCLKIN. Set MS/HVEN = high to put the control channel
into bypass mode. For applications with the FC connect-
ed to the deserializer, there is a 1ms wait time between
setting MS/HVEN high and the bypass control channel
being active. There is no delay time when switching to
bypass mode when the FC is connected to the serial-
izer. Do not send a logic-low value longer than 100Fs to
ensure proper GPO functionality. Bypass mode accepts
bit rates down to 10kbps in either direction. See the
GPI Control
control-channel data pattern should not be held low
longer than 100Fs if GPO control is used.
S: START
7
DATA 0
1
R
11
1
A
P: STOP
DATA 0
ACK FRAME
section for GPO functionality limitations. The
8
11
A: ACKNOWLEDGE
DATA 0
1
A
8
STP Cable Drive
DATA N
DATA N
1
A
11
8
DATA 0
11
1
A
P
1
DATA N
MAX9271
UART Bypass Mode
8
ACK FRAME
11
1
A P
1
DATA N
11
GPO/
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